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Note 4 - Investments (Details) - Summary of Level 1-3 Financial Assets and Liabilities (USD $)
Sep. 30, 2013
Dec. 31, 2012
Fair Value, Inputs, Level 1 [Member]
    
Fair Value, Instruments Classified in Shareholders' Equity Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Investments $ 0 $ 0
Total 0 0
Fair Value, Inputs, Level 2 [Member]
    
Fair Value, Instruments Classified in Shareholders' Equity Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Investments 0 0
Total 0 0
Fair Value, Inputs, Level 3 [Member]
    
Fair Value, Instruments Classified in Shareholders' Equity Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Investments 181,231 158,141
Total $ 181,231 $ 158,141